Breguet Marine Haute Joaillerie 9509 Poseidonia

Breguet's Marine Haute Joaillerie 9509 Poseidonia, reference 9509BB/TD/984, has a white gold case measuring 35.8 mm across. The case stands 10.5 mm thick and the lugs are spaced 18.5 mm apart. A sapphire crystal covers the mother-of-pearl dial, its marquetry set with diamonds through invisible-setting work. The self-winding calibre 591 C drives the watch, with a central seconds display and 38 hours of power reserve. The sapphire caseback lets the movement's finishing show through. Diamonds also appear on the folding clasp, which is made of white gold and closes an alligator leather strap. Breguet rates the case to 1.5 bar, a depth of 15 metres.